Carton



March 17, 1936.

CARTON Filed Aug. '14, 1935 2 Sheets-Sheet 1 yazz 11 Z 26 J0 13 a) Z0 8 JZ E INVENTOR WM 4 W BY ATTORNEY J.

H. GREVE 2,034,675

March 17, 1936.

H. L. GREVE 2,034,675

CARTON Filed Aug. l4, 1935 2 Sheets-Sheet 2 m 4 & 65 49 16; 2]

INVENTOR Patented Mar. 17, 1936 UNITED STATES CARTON Herman L. Greve, Hollis, N. Y., assignor to International Mailing Tube and Wrapper Company,

Long Island City, N. Y.

Application August 14, 1935, Serial No. 36,059

8 Claims.

My invention relates to cartons made of cardboard or fibreboard for use in shipping bottles containing liquids, or other materials, and which is blanked out and formed to provide a carton in which the front and back sides and top side are reinforced and stiffened to preserve its form in transit.

The principal object of my invention is to provide a carton in which its contents may be safely transported.

A further object is to provide a carton of strong stiff construction that is so formed as to permit it to be permanently locked by means arranged in an edge portion of the cover which coacts with the body portion of a lock located on the inner face of the carton in a position where it cannot be reached after the carton is locked.

A further object is to provide a carton that is easy to make including the blanking operation and attachment of the locking means along one side of the cover only, regardless of the length of the carton.

Referring to the drawings winch form a part of this specification.

Fig. 1 is a plan view of a construction in which a single lock is used to seal the carton.

Fig. 2 is a vertical sectional view, taken on line 22 of Figure 1.

Fig. 3 is a cross-sectional view, taken on line 3-3 of Figural.

Fig. 4 is a plan view of the latch portion of the lock prior to being bent in the act of locking the carton.

Fig. 5 is a face view of the body portion of the lock.

Fig. 6 is a perspective front view of the carton as it appears in its folded condition ready for the reception of the goods to be shipped.

Fig. '7 is a view of the blank, cut and scored ready to be folded, and having a single locking means fixed thereon.

Fig. 8 is a view of a carton of greater length than that shown in Figure 7, showing two looking means thereon.

Where the carton is made in small sizes, a single lock is sufiicient to firmly hold the cover in permanently locked position on the body portion, but when the carton is made in relatively large sizes, a plurality of locks arranged in a row as shown in Figure 8 is required.

It is scored on the dotted lines and slitted on the full lines to permit it to be easily folded and its flap portions interlocked, the flap portions forming the front and back inner sides of the carton being interlocked in such a manner as to provide extended overlapping portions which stiffen and strengthen the longitudinally extending sides.

It indicates a portion held in hinged relation to the bottom portion of the carton and is turned upwardly and then laterally to engage and interlock with the portion II which is also erected in a like manner, thus forming the front side of the inner body portion, while the portions 52 and I3 are erected in a like manner to form 10 the back inner wall, the slits l4 permitting the interlocking of the parts in a manner Well known to this art.

A flap portion l5 carried by the portion II] is folded over on the dotted line to provide a smooth upper edge 16 which strengthens and stiifens the top edge and assists in guiding the latch 25 into proper engagement with the body portion of the lock 26, and when folded, a portion extends over the portion H and is held in 20 folded position by the flap ll.

The flap ll forms the outer front side of the carton, and carries .a top flap i8 which is provided with a U-shaped slit which forms a tab l9l9 respectively indicate the end walls. each 25 of which carries a flap 23 which underlies and are held in position by the cover portions.

The outer back wall 20 is hinged to the bottom and carries a flap 2| on which the latches 21 are fixed.

The body portion of the lock 26 is made from a single piece of thin sheet metal comprising a rectangular shaped plate the corners of which are bent to provide fastening prongs 28, the same being shown attached to the carton at H) in Figures 6, 7 and 8, and the plate is formed. to provide an outwardly extending wall 29 having an inwardly extending lip 30, and to provide an inclined surface 32.

The inclined surface serves to guide the end 33 of the latch 25, after the latch is bent adjacent its prongs, and its free end contacts said inclined surface in the act of locking.

A notch 35 is formed in the edge of the cover flap and positioned to register with a tab 25' Which bends inwardly when the latch is pushed therethru and which serves to guide the latch so that the lips 30 and 34 will interlock and hold together in permanent relation.

A flap portion I3 is preferably formed integral with the flap l3 to increase the stiffness and strength of the carton, but for small sizes this flap portion may be dispensed with.

It will be understood that in making long- 5 bodied cartons, I may use any desired number of locks required to securely seal the carton.

When folded and locked, as illustrated in Figure 3, it will be observed that the top, front and back walls conprise a number of flaps held closely together in a manner which stiifens the construction, and that the flap portions located between the outer and inner side walls extend downwardly over the interlocking joints a considerable distance and serve to provide top edge surfaces that are smooth and straight which supports the cover firmly along the edge carrying the latches 25.

It will be seen that the body of the lock is located on the inner face of the carton where it cannot be reached by any instrument without destroying either the carton or the locking means, and that by the construction shown, all of the locks are positioned along one seam of the carton only, thereby making it easy to attach the latches and body portions of the locks to the blanks.

In shipping articles of glass or other fragile material, a corrugated sheet or lining may be folded to conform to the bottom and end walls to further stiffen the carton and protect its contents.

Having thus described my invention I claim as new:

1. A carton of the character described comprising a blank folded to provide a bottom having flap portions forming end walls, inner side walls, outer side walls and a cover; one of said inner side walls having a flap portion which is folded to extend adjacent an outer side wall and to provide a smooth upper edge for said inner wall.

2. A carton of the character described comprising a blank folded to provide a bottom having flap portions forming end walls, inner side walls, outer side walls and cover; said inner side walls having flap portions which are folded to extend adjacent the outer side walls and form smooth upper edges for said inner walls.

flap portions forming its end walls together with its inner front and back walls, each of said inner walls being made in two parts held together in interlocked relation; each of said end walls also having a top flap portion which extends over the chamber of the carton; an outer side wall connected to the bottom which carries a flap portion forming an inner cover; a flap connected to the bottom and formed to provide the opposite outer side of the carton and a top cover, said top cover extending over the entire upper side of the carton.

4. The construction defined in claim 3, together with: a flap carried by an inner side wall portion which is folded to provide a smooth top edge for the wall.

5. The construction as defined in claim 1, together with: means for locking the cover to the body portion of the carton in permanent relation therewith.

6. The construction defined in claim 2, together with: means for locking the cover to the body portion of the carton in permanent relation therewith.

'7. A carton of the character described comprising a blank folded to provide a bottom having flap portions forming end walls, inner side walls, outer side walls and a cover, one of said inner side walls having a flap portion which is folded to extend adjacent an outer side Wall and to provide a smooth upper edge for the said inner wall, a lock carried on an inner face of an inner wall, and a latch for said lock carried by the cover.

8. A carton of the character described comprising a blank folded to provide a bottom having flap portions forming end walls, inner side walls, outer side walls and a cover, one of said inner side walls having a flap portion which is folded to extend adjacent an outer side wall and to provide a smooth upper edge for the said inner wall, a plurality of locks arranged in a row carried on the inner face of an inner wall, and a latch for each lock carried on the cover.

HERMAN L. GREVE. 

